SU1594494A1 - Arrangement for controlling water level in hydraulic structure pond - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used to control the level of water. The aim of the invention is to reduce material consumption and increase reliability. For this purpose, in a level control device comprising a water-filled valve 2 with a horizontal axis of rotation 1, a working siphon 6 and a charging siphon 9 communicated with it, a vacuum disruption tube 10 with a float valve 11, a valve 2 is placed on consoles 3, descending gate 2 is located outside of gate 2, the charging siphon 9 is connected to vacuum interruption tube 10 and is located in the upstream. 1 hp f-ly, 2 ill.

Description

1

The invention relates to engineering and can be used to adjust the water level in hydraulic structures. The aim of the invention is to reduce material consumption and increase reliability.

Fig about 1 shows the proposed device, a general view; FIG. 2 is a section A-A in FIG. 1;

A device for adjusting the level in the byte of hydraulic engineering - does not contain a water-filled gate 2 mounted on the horizontal; 3-octal axis 1 of rotation, operated L-shaped and fitted with a console 3,

The water filled tank 2 is made from the downstream cylindrical with the center of the outline; on the axis. 1 rotation The pressure face 4 of the shutter 2 forms an angle of at least 25-35 with the plane j protruding through the base of the pressure face 45. The capacity of the water-filled shutter 2 is in communication with the upper reach and discharge hole 5 with the lower one. Beef - working siphon 6,: up the branch of which is located in the tank of the water-filled valve

2f the descending branch of the working siphon 6 is located outside the tank of the water-filled valve 2 and communicates with it by the branch of the siphon 6 with a connected insert 8,

The device contains a charging siphon 9 connected to a working siphon 6. A charging siphon 9 is connected to a vacuum interruption pipe 10, which houses a float valve 11 placed in the well 12 and connected with the float sensor 13.

The dp device for adjusting the headwater level is shown in fig. Ij and a device for adjusting the level of the downstream eody (sensor zfovn) - in FIG. 2 by a dotted line.

A device for adjusting the level of water in the pool of hydraulic structures works as follows, h

While the waters in the upper side of the HeTj gate 2 are in the closed position, the float sensor 13 is in the lower (lowered) state, joianaH 11 is open, that is, e. The entrance to the BaKyyivia breakdown tube 10 is opened, and air from the atmosphere freely enters the tube 10J and through it into the cavity of the working siphon 6j, excluding its charge.

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When water enters, it fills the upper reach and at the same time through the opening 5 enters the valve's capacity 2j balancing the water pressure on Hanopnyjo face 4 from the side of the container 2, the pressure of water on .I1 the surface of the container 2 does not cause a motive, nent. as the vector of this force passes through the axis of rotation. Upon reaching a predetermined level (set by the high-altitude position of the float sensor 13), the valve will open and close the valve 11. The tube 10 stops the flow of air into the coil of the working siphon 6, as a result, the vacuum generated by the charge siphon 9, whose mouth is below the water level It is transferred to the knee of the working siphon 6, ensuring its charging. As the working siphon 6 is charged, the latter starts pumping water from the container 2, reducing its weight and pressure on the pressure face P from the side of the container 2,

B, as a result, the moment from the force of pressure of the water P becomes greater than the number of forces P and G (gravity or weight of the bolt 2), due to which bolt 2 begins to open. Taking into account the G-shaped version of the shutter 2 with the installation angle T 25-35, the shutter 2, when rotated 25-35 °, ensures full opening of the span, i.e. provides skipping flow. water as a spillway with a wide threshold at the same pressure, the l-shaped version of the shutter 2 virtually eliminates flow shielding.

As the shutter 2 opens, the water level drops, the float sensor 13 lowers the SS, the valve 11 opens the entrance to the vacuum breakdown tube 10, the air from the atmosphere enters the tube 10 and through it into the siphon 6, ensuring a decrease in the suction flow rate from the shutter capacity 2. Balance occurs when the flow rates into the container of the shutter 2 and that it is sucked from it, which is at a given water level, and, consequently, the position of the valve 11 controlled by the float sensor 13, are equal,

At the same time, regardless of the position of the shutter 2, up to its full opening, the siphons of both working 6 and charged 9 have a guaranteed drop, which, with the opening of the shutter 2

increases their work.

which increases reliability

Formula

Claims (2)

1. A device for adjusting the level of water in a hydraulic installation by-turn, containing a water-filled valve with a horizontal axis of rotation, a charging siphon and a working siphon communicating with each other, the ascending branch of which is placed in the tank of the water-filling valve, and a vacuum disruption tube, on which a float valve is located; the charge siphon is located below the upper pool level, characterized in that, in order to lower neither the material consumption nor the increase in reliability, the capacity of the water-filled gate is cantilevered relative to its axis of rotation, the descending branch of the working siphon is placed outside the capacity of the shutter, communicated with the downstream and connected with a flexible insert to the ascending branch of the working siphon, the charge siphon communicates with the vacuum breakdown tube and placed in the upper bay, 2. An apparatus according to claim 1, characterized in that the nether formed by the pressure face of the water-filled gate and the plane passing through the base of the pressure face and through the axis of rotation -35 M. Blanar  V 7 j Compiled by T., Shutter Techred L. Oliynyk A: LL Proofreader T.Male1 5